Decker, "We all have free will. There were conscientious objectors during WWII and that was a legal war."
You said we live in a pluralistic society, humanistic, and existentialism have no place in a pluralistic society.
These kids have two options, 1) go to war, do all they can to survive and come home to see their families, 2) don't go and go to prison for many years putting financial strain and burden on their families.
Well that's not a shell shocker.
You can rebel against a cause that society deems unfair, or unfit for the cause but the larger effect is those inocent people that are affected by it....1 being the soldiers.
But if you really want to rebel, since you believe in humanistics, then quit paying your taxes that support in part the war.